Low temperture High Capacity 73173207 210Ah Prismatic Sodium-ion Battery Na+ Battery cell

Nominal capacity

210Ah@0.2C

Typical capacity

210Ah@0.2C

Nominal voltage

3.10V

Charge voltage

4.00±0.05V

Discharge cut-off voltage

1.50±0.05 V

Internal resistance

≤0.50mΩ

Cell dimension

Length:173.60±0.50mm   

Width:71.25±0.50mm

Height:203.70±0.50mm

Energy density

166.00Wh/Kg

Weight

4.50±0.50Kg

Storage temperature

(State of charge at shipment)

1 year:-20～25℃

3 months:-20～30℃

1 month:-20～35℃

Maximum Continuous Charging Current

≤-10℃:can not charging Temperature

0~5℃:≤0.1C

5~15℃ :<0.2C

15~25℃:≤0.5C

25~35℃:≤1.0C

35~45℃:≤0.5C

≥45℃:can not charging Temperature

Maximum continuous discharge current

≤-30℃:can not discharging Temperature

-30~0℃:≤0.5C

0~10℃:≤1.0C

10~35℃:≤3.0C

35~45℃:≤1.0C

45~60℃:≤0.5C

≥60℃:can not discharging Temperature

Fast charge

Constant Current 1.0C Constant Voltage 4.0V 0.05C

cut-off

1

Discharge rate capability

Test condition:Temperature:25.0±3.0℃

Charge:CC/CV 0.5C 4.0V cut off current:0.05C

Discharge:CC variable values;End-of-discharge Voltage:1.5V

discharge capacity at 1.0C

≥97.00%

discharge capacity at 0.5C

discharge capacity at 2.0C

≥96.00%

discharge capacity at 0.5C

discharge capacity at 3.0C

≥95.00%

discharge capacity at 0.5C

2

Cycle life

Test conditionTemperature:25.0±3.0℃

Charge:CC/CV 0.5C 4.0V cut off current:0.05C

Discharge:CC 0.5C;End-of-discharge Voltage:1.5V

discharge capacity of 4000th cycle

≥70.00%

nominal capacity

3

High-Low temperature  discharge performance

Test condition:Temperature:25.0±3.0℃

Charge:CC/CV 0.5C 4.0V cut off current:0.05C

Discharge:CC 0.5C;End-of-discharge Voltage:1.5V

discharge capacity at-30℃

≥85.00%

discharge capacity at 25℃

discharge capacity at 60℃

≥98.00%

discharge capacity at 25℃

4

Storage performance

Test condition:

Charge:CC/CV 0.5C 4.0V cut off current:0.05C;stored at 25℃

for 1 month

Discharge:CC 0.5C;End-of-discharge Voltage:1.5V

recover capacity

≥95.00%

original discharge capacity